mecanum wheels

I recently bought the 60mm mecanum wheels and the 8mm screw hubs and cannot figure out how or if these parts are compatible… On receiving the 60mm wheels, I realize that I probably would prefer to move up in size to the 100mm mecanum wheels. Would the 8mm screw hub line up w 100 mm wheels? Everything else I got seems compatible: stepper motors, bracket, 8mm screw hub all connect…

To be certain we know which ones you’re talking about, can you provide product codes and/or links to the hub and wheels in question?

From the packing slip:

60mm wheels: RB-Nex-94
8mm screw hub: RB-Nex-18

They are unfortunately not compatible. The manufacturer does not have an 8mm hub for that wheel.
robotshop.com/en/nexus-robot-en.html
You would either need to work with a 4mm, 5mm or 6mm hub, or choose different wheels.